1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrews [41]
3 years ago
15

Kaitlyn and Allison took a standardized algebra test in different states. Kaitlyn takes the test for Virginia and scores a 458.

Allison takes the test for North Carolina and scores a 185. Suppose the mean and standard deviation for the algebra scores for Virginia are 405 and 30, respectively, and the mean and standard deviation for the algebra scores for North Carolina are 152 and 20, respectively. Which student did better on her algebra test?
Kaitlyn and Allison did equally well since their scores are both above the mean.
Kaitlyn did better since her z-score is higher than Allison’s z-score.
Allison did better since her z-score is higher than Kaitlyn’s z-score.
Allison did better since her z-score is closer to the mean than Kaitlyn’s z-score.
Mathematics
2 answers:
notsponge [240]3 years ago
8 0

Answer:

B.) Kaitlyn did better since her z-score is higher than Allison’s z-score.

Step-by-step explanation:

just took the unit review

Anna [14]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Got it right on edge

You might be interested in
Helpppp plssss!!!<br><br>Appreciate you!!
Mice21 [21]
I think it's D. (sorry if i'm wrong)
8 0
3 years ago
Read 2 more answers
Graph the ellipse with equation x squared divided by nine plus y squared divided by sixteen = 1
gladu [14]
X²/9 + y²/16 = 1

The general for mula of an ellipse is:

(x-h)²/a²  + (y-k)²/b² = 1. Since h = k = 0, this ellipse
x²/9 + y²/16 = 1
passes by the center O. (Note that a = 3 and b = 4)

Moreover sin b>a  so the majore axis is (on the y-axis) and a the minor axis (on the x-axis) [Its shape is as a vertical egg].

On a system of perpendicular axis that intercept in O., take on the x-axis 2 points A & B with respective coordinate A(3.0) and B(-3,0)
On the y-axis your report A'(0,+4) and B'(0,-4). So you have the vertex of the ellipse, then it's easy to draw it

6 0
3 years ago
Read 2 more answers
The first day, Brian saw 31 birds and twice as many squirrels as birds. The second day, Brian saw 20 birds and 42 squirrels. Whi
ladessa [460]

Answer:  A good estimation would be about 150.

Step-by-step explanation:

To estimate we can round instead of using exact numbers.

First day he saw about 30 birds and twice as many squirrels, meaning about 60 squirrels.  This is about 90 total when added together.

Second day he saw 20 birds and about 40 squirrels so about 60 when added together.

Add day one and day two totals for...

90+60=150

8 0
2 years ago
If m(x) = x^2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)?
eduard
(x^2 + 3)(5x + 9)
5x^3 + 9x^2 + 15x + 27
7 0
3 years ago
Expreessions represent The sum of 3 and n
weeeeeb [17]

Answer:

3+n

Step-by-step explanation:

Simple questions but it can be technical atimes, according to the question we are to solve in terms of n, simple...

The sum of 3 and n can be written as 3+n

This cannot be solved further because there are two different variables and it is impossible to add them together

Therefore the final answer is 3+n

But in case a value is given for n we can then substitute and solve further

Hope this will help you

6 0
3 years ago
Read 2 more answers
Other questions:
  • A desk is on sale for $380 which is 20% of the original price. Which equation can be used to determine the amount of money saved
    9·2 answers
  • Using the Quadratic Formula, which of the following is the solution to the quadratic equation 5x2 + 10x - 5 = 0?
    10·1 answer
  • Two 2 1/2 inch plastic and two 5 1/3 inch plastic are used to from a rectangle.What is the perimeter of the rectangle
    9·1 answer
  • A bag contains 25 cents and 50 cent coins whose total value is $30 if the number of 25 cent coins is four times that of 50 cent
    5·2 answers
  • Maria had a spool of ribbon 68 inches long. She cut the ribbon into 8 equal-length pieces. How long was each piece of ribbon? Za
    7·1 answer
  • Campus sold 400 tickets to a varsity basketball game. Tickets are were $5 for students / children tickets and $9 for adults. The
    11·1 answer
  • A debt of $648 is evenly split among 3 friends.
    7·2 answers
  • Help meeeee plzzzzzz
    15·1 answer
  • For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
    10·2 answers
  • What does x2 + y2 equal.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!